Greater London · England
Commercial Sealant in North Sheen
Commercial sealant across North Sheen and nearby, with every bit of old sealant taken out first.
- Water marks on ceilings under bathrooms
- Tired sealant ahead of a health and safety audit
- Silicone laid over old silicone by a previous contractor
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
For anyone letting property in or around North Sheen, several properties can go on one quote. Just tell us the addresses and what each one needs.
How we handle commercial sealant in North Sheen
In showers and washrooms we use anti-fungal sanitary silicone, with a food-safe sealant by kitchen sinks where needed. We use sealants from Arbo and Everbuild, chosen to suit each joint. We work on student & care accommodation, office washrooms & kitchens and rental portfolios, and the jobs we see most are split sealant around staff kitchen worktops and sinks and leaks from showers into rooms or ceilings below.
London’s offices, shops, hotels, student accommodation and blocks of flats all have joints to look after, from washroom silicone to fire-rated sealant around pipes and cables passing through walls. Where a building in North Sheen needs to stay open, work can be planned outside normal hours.
You’re covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or send us an email.
- Where
- North Sheen (TW9, SW14, W4)
- Region
- Greater London
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Nearby places to North Sheen
More services for North Sheen
What happens on the day
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself usually takes as long as the scope needs, from one welfare room to a full building, depending on the amount of work. For a job in North Sheen, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- We start by looking at the rooms and agreeing what’s needed.
- We agree when we will work, with early or out-of-hours slots where they can be arranged.
- Areas are protected and the failed sealant removed.
- Joints are dried, then resealed and tooled neatly.
- Housekeeping or site staff are told when each area can be used.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Mention any sign-in or site rules at work premises
- Mention any leaks or damp you’ve noticed
Getting a quote
Need a quote? Please ring 0345 464 0079 or send us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Related advice
How we quote for commercial sealant
For a quick quote, just ask. What matters most is:
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
- Whether there’s mould to deal with
- How many rooms, windows or areas are involved
The cost depends on the amount of work, how hard the old material is to remove and access to the work. We give a clear quote before any work starts, so you know where you stand.
What we need to know
To make quoting easier, let us know:
- If someone has resealed it before
- A few photos by email, if you can
- How we’d reach the joints
- Whether it’s a home or a business
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you’re ready, phone 0345 464 0079 or email us.
FAQs for North Sheen
Can you help a landlord with a rental near Kew Gardens station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear price.
Do you work for hotels and guest houses in North Sheen?
Yes, hotels and guest houses are among the places we work. Rooms can be done a few at a time, so the building stays open.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover North Sheen, along with the rest of our area.
Can you match the sealant colour?
Yes. Sealants come in white, clear, grey and other colours for many products, and we’ll agree it with you first.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Can you seal over the old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Keep a record of which rooms were resealed and when
- Ask cleaners to go gently on the silicone
- Put a squeegee in each shower
- Keep extractor fans working and serviced
Each room is handed back with its cure time, which is usually around 24 hours. Make sure housekeeping or cleaning staff know it so the new sealant isn’t wetted or scrubbed too soon.
Water from a failed shower seal can travel: through floors, into ceilings and across into corridors. Early resealing keeps it from getting that far.
What we are called out for in North Sheen
A rushed reseal between guests rarely lasts. Sealing over old silicone, sealing wet joints or using the wrong product means the joint fails again soon.
If you can see any of these, it’s time to have the joints looked at:
- Whole floors of tired en suites
- Sealant failing again soon after quick repairs
- Tired sealant in let properties
- Tired sealant ahead of a health and safety audit
As a London address, North Sheen can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
What to look for in a quote
- Which sealant they’ll use, and why
- Who turns up on the day
- When the joint can take water or movement
- Which colour the sealant will be
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Why deal with it now?
A leaking shower in a hotel room or flat above can damage the ceiling below. Then two rooms are out of action, not one. A reseal now avoids that. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in North Sheen, the repair is bigger than a sealant job.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Why choose Mr Mastic in North Sheen
- 20+ years of sealant experience
- Old sealant always removed completely
- Approved under the ARBOMaster scheme
- Rated 4.9 stars on Google
Read what affects the cost or customer reviews.
What commercial sealant looks like in North Sheen
There are hotels and other places to stay in and around North Sheen. For hotels, a room-by-room programme keeps most rooms in use while the work goes on. Commercial buildings in London often have strict access rules and limited loading, so out-of-hours working can be arranged where needed.
If you look after a church, hall or community building such as The Barn Church, halls and community kitchens see heavy use, and their sealant shows it. For site and facilities teams at buildings such as Kew Riverside Primary School, washroom and kitchen sealant can be programmed around term times or opening hours.
North Sheen is about 3 miles south of Acton, in Greater London. We provide commercial sealant to homeowners, landlords and businesses in North Sheen. Our area takes in 764 places across Greater London, from the larger towns to small villages. You can also see our page for London, about 8 miles away.
Every address in TW9, SW14 and W4 is covered for commercial sealant, from the main roads to the quietest streets. Whether your property is on Kent Road, Ibis Lane and The Avenue or a nearby road, we can help. Nearby, we also carry out commercial sealant in Kew (1 mile north), Grove Park (1 mile north-east), Strand-on-the-Green (1 mile north), East Sheen (1 mile south-east) and Mortlake (1 mile south-east). Further out, we also cover London (8 miles east), City of Westminster (6 miles north-east), Marylebone (6 miles north-east), Kensington (4 miles north-east), St Pancras (8 miles north-east) and Shoreditch (9 miles east).
Local landmarks in North Sheen
Typical jobs here are in homes near Kew College Prep, Dukes Meadows and Chiswick School and the streets around them. North Sheen has its own railway station: Kew Gardens station. Well-known places in the area include Barnes Hospital (1.1 miles south-east) and Livat Hammersmith (2.5 miles north-east). For a walk, there’s Kew Gardens Lake and Duke's Hollow.